Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2d0b4146d2cb67f…

MALICIOUS

PDF

46.4 KB Created: 2020-08-22 01:43:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 19f9b565bc29032a43b191d7ec4c31c6 SHA-1: 9a2331ec2ba53c253bc8853270911a2267eafcf0 SHA-256: b2d0b4146d2cb67fbc8410889172c6fa0a17053d5cc9210b53b79ec7dacf21e5
128 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link T1566.002 Spearphishing Attachment

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=airtel+tv+exe++for+pc'. Additionally, it exhibits a PDF link farm heuristic, with numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same redirector URL and a benign-looking Shopify URL. The presence of a 'download button' heuristic further supports a lure-based attack pattern.

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=airtel+tv+exe++for+pc
    • http://sipevozu.aqeek.com/uploads/1/3/1/4/131452977/e9dca3336.pdf
    • http://files.creativeislandphoto.com/uploads/1/3/0/9/130969525/gajavudukabafuvukos.pdf
    • http://bulovukid.thegathering4coacheswives.com/uploads/1/3/2/3/132302780/5202613.pdf
    • http://furidaw.cambridgegirlschoir.com/uploads/1/3/0/7/130739919/f304b2b.pdf
    • https://cdn.shopify.com/s/files/1/0431/5113/0785/files/capites_de_areia_livro_completo_em.pdf
    • https://cdn.shopify.com/s/files/1/0433/9000/9502/files/15554864835.pdf
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/31039558892.pdf
    • https://cdn.shopify.com/s/files/1/0437/6051/7269/files/the_boy_in_the_striped_pyjamas_questions.pdf
    • https://cdn.shopify.com/s/files/1/0429/9948/0473/files/45327085462.pdf
    • https://cdn.shopify.com/s/files/1/0434/9070/5574/files/ganumewazixamawine.pdf
    • https://cdn.shopify.com/s/files/1/0430/0845/8905/files/darkest_dungeon_android_port.pdf
    • https://cdn.shopify.com/s/files/1/0431/7777/1164/files/82978054318.pdf
    • https://cdn.shopify.com/s/files/1/0430/6275/5490/files/95369802068.pdf
    • https://cdn.shopify.com/s/files/1/0437/3318/8762/files/xununifa.pdf
    • https://cdn.shopify.com/s/files/1/0433/9879/1333/files/depejazilabopi.pdf
    • https://cdn.shopify.com/s/files/1/0432/9196/7652/files/70450257914.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b59.bin
7e71144b9c58839156a311e23e3816467dd8c5dce0a22addf53ccc93240e7b01
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B59 4420 bytes
font_01_sfnt_off00007a76.bin
2e916e3662e18f9eaf5399d5873609883b5e7151aabeef630e9fe6b1b18706ff
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A76 10580 bytes
font_02_sfnt_off00009ed3.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0x9ED3 4324 bytes